PTN PA3V, Руководство пользователя

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40W Power Amplifier
PTN Electronics Limited
6
www.PTN-electronics.com
b) Balanced connection:
“+” connects to positive, “-” connects to negative and “ ”
connects to ground.

LINE input
When the switch turns to “LINE” (It has a low frequency characteristics, and wide
frequency response in this mode), the microphone input is used for connecting with
normal audio or wireless microphone output. There are two different connections:
a) Unbalanced connection:
“+” and “ ” connect to ground, and “-” connects to signal.
“-” and “ ” connect to ground, and “+” connects to signal.
b)
Balanced connection: “+” connects to positive, “-” connects to negative and “ ”
connects to ground.

Digital Audio Input
PA3V provides with a fiber optical port to connect with digital audio source device. With
the SPF optical fiber, the audio signal can be transmitted faster, more stable, reliable,
and can be transmitted over a long distance without distortion.
3.4 System Applications
PA3V can be applied in different occasions, such as classroom, small meeting room,
lecture hall, bar and hotel etc.
4. System Operations
4.1 Operations of Front Panel
The buttons provides the control of volume/EQ control and switching. The LED indicator
will show the connecting status. The following content introduces audio switching and
EQ control in detail.
Operations: Press the corresponding button again for cyclic switching.
4.1.1 Audio switching
There are three switchable audio inputs, one 2xRCA input, one 3.5mm jack input, and
one digital fiber audio input, switchable through the buttons as below:
Figure 6 Audio Source Selection Button
Audio Source Selection:
1: Dual mono audio
2: Stereo audio
3: Digital fiber audio.